St. Clair County, IL Power Outages
Utilities serving St. Clair County, Illinois don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
St. Clair County on the Illinois outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
St. Clair County power outage history
Every significant outage recorded in St. Clair County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 185 significant power outages in St. Clair County, meaning events that left at least 1% of customers in the dark. The largest (Jul 13–16, 2016) came when severe thunderstorms left 40,861 customers (43.3% of the county) without power.
From 2018 to 2025, the average customer here lost about 5 hr 24 min of power per year, more than the Illinois average of 2 hr 57 min. That ranks 37th of 102 Illinois counties for outage time, where 1st has the most.
July is the riskiest month: it accounted for 30% of all customer outage time from 2018 to 2025. On 26 days in that period, at least 5% of customers were out at the same time. Outage time in St. Clair County has risen recently: about 6 hr 15 min per customer per year in 2022–2025, versus 4 hr 33 min in 2018–2021.
The most recent significant outage on record (Dec 31, 2025) affected 1,151 customers (1.2%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Jul 13–16, 2016 | 40,861(43.3%) | 4 | Severe thunderstorms |
| 2 | Jun 28 – Jul 4, 2018 | 28,750(30.5%) | 7 | Severe thunderstorms |
| 3 | Oct 25, 2021 | 28,422(30.1%) | 1 | Severe thunderstorms |
| 4 | Mar 14–20, 2025 | 18,062(19.1%) | 7 | Severe thunderstorms |
| 5 | Jun 25–26, 2015 | 14,467(15.3%) | 2 | Severe thunderstorms |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in St. Clair County?
Electric companies with service territory in St. Clair County (EIA-861, 2025)
| Utility | Type | Customers (IL) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Ameren Illinois | Investor Owned | 1,251,245 | Not reporting | |
| Southwestern Electric Coop Inc - (IL) | Cooperative | 24,885 | Not reporting | |
| Tri-County Electric Coop, Inc (IL) | Cooperative | 16,715 | Not reporting | |
| Egyptian Electric Coop Assn | Cooperative | 15,856 | Not reporting | |
| Monroe County Elec Coop, Inc | Cooperative | 7,584 | Not reporting | |
| City of Highland - (IL) | Municipal | 6,912 | Not reporting | |
| Clinton County Elec Coop, Inc | Cooperative | 6,277 | Not reporting | |
| City of Mascoutah - (IL) | Municipal | 4,225 | Not reporting | |
| Village of Freeburg - (IL) | Municipal | 2,301 | Not reporting |
Customer counts are each utility's statewide total in Illinois. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No St. Clair County outage headlines in the past week.
Cities in St. Clair County
Belleville, O'Fallon, East St. Louis, Cahokia Heights, Fairview Heights, Shiloh, Swansea
Nearby counties
St. Clair County power outage FAQ
Is the power out in St. Clair County right now?
No outages are currently reported for St. Clair County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves St. Clair County?
According to EIA-861 service territory data, Ameren Illinois Company, Southwestern Electric Coop Inc - (IL), Tri-County Electric Coop, Inc (IL), Egyptian Electric Coop Assn and 5 others provide electric service in St. Clair County, Illinois.
What was the worst power outage in St. Clair County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Jul 13–16, 2016. It peaked at 40,861 customers without power (43.3% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in St. Clair County?
EAGLE-I has recorded 185 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 5 hr 24 min of power per year, and on 26 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "St. Clair County, IL Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/illinois/st-clair-county